Multiplier



July 27 1926.

A. F. MORRELL MULTIPLIER Filed NOV. 25, 1924 2 Sheets-Shes@ 1 July 27 1926.

A. F. MORRELL MULTIPL'IER Filed Nov. 25, 1924 2 Sheets-Sheet 2 Patented July 27, 1926.

unirsi) perras issie/ii sereni" ries. i

ALFRED r. Montanari, or woncnsrnn, Massaorrusnrtrs, assrenon To Cnoivrrtron a irnownns noci/r Wonne', or wonons'rna, Mnssacnnsnrrs, a ooaronarion or MASSACHUSETTS.

MULTIPLEER.

Application filed November 25, i924. Serial No. 752,221.

This invention relates to a. multiplier for use in controlling the movementsot the shitting shuttle bones tor a drop boi; loom or for other similar purposes. ln such looms it is customary to provide a multiplyin. chain which will permit the main pattern chain to remain at rest for a predetermined number of picks.

The number oli' links between the risers in the multiplying chain must usually correspondjto the smallest number of repeats for which the multiplying chain is to be user. For each renewed operation of the multiplier, an additional link in the main pattern chain is required to again start the'multiplier in operation.

il fabric may frequently have a design in which hroad and narrow bands ot color occur. This limits the repeats of the single chain multiplier to the small number oi picks in the narrow bands, and requires a large number ot renewed operations ot' the multiplier 'for the wide bands, with a corresponding increase in the length ot the main pattern chain.

It is the object of my invention to provide additional multiplying mechanism by which such broad bands may be woven with a greatly reduced number oic links in the main pattern chain. For this purpose, l provide a second or auxiliary multiplying chain having a substantially larger number oii links between risers or more commonly with a single riser only in a comparatively long chain.

l also provide connections by which the loom will rontinue in operation for the minimum,number of picks indicated by the auxiliary multiplier chain, regardless of the indications of the prin'lary multiplier chain. lathe pre'l'erred iorm the auxiliary multiplier chain acts to hold the shitting mechanism for the main chain clutch inoperative, even when released by the primary multiplier. My invention `further relates to arrangements and combinations. ot parts which will he hereinafter described and more particularly pointed out in the appended claims.

il; preferred form of the invent-ion is shown in the drawings in which Fig. l is a plan view or' my improved multiplier Fig. 2 is a rear elevation, looking in the directionot' the arrow 2 in Fig. l;

Fig. 3 is a detail sectional view, taken along the line 3-3 in Fig. l;

Fig. e is an end elevation, looking in the direction of the arrow i in Fig. l; i

Fig. is a partial front elevation, looking in the direction ot the arrow 5 in Fig. l;

Fig. 3 is a sectional view, taken along the anis o1" the multiplier shaft, and

Fig. is a detail sectional elevation, taken along the line -i' in F ig. l.

Referring to the drawings, l have shown my improved multiplier assembled upon a 'trame i0 which may be rigidly secured to a loom trame il (Fig. il). The'inain pattern chain l2 (F 2) is mounted on driving sprockets 13 on a sleeve le, freely rotatable upon a shaft fixed in the tramel 10. A disc 1G (Fig. 'ined to the sleeve lll; is vprovided with :i series lot notches orrecesses in its outer tace, adapted to receive a lug or projection li' (Fig. l) formed on a clutch collar 13 which in turn is slidable on a second sleeve l). rEhe collar 18 has an annular groove which receives a projection ontiie end oi an arm 2t) mounted on a lined pivot 2l. l

The sleeve 19 has a notched disc 22 at one end and a worm gear 23 at the opposite end. r1he gear 23 (F ig. is intermittently advanced by a dwell worm 24 on an upright driving` shaft 25 suitably connected to any desired mechanism by which the shaft is continuously rotated. The worm gear 23 is thus intermittently advanced, carrying withit the collar 13.v The main pattern chain .is similarly advanced when the collar A13 is moved to the right in liig. to connect the wei-in gear 23 to the sprockets 13.

A. hand wheel 26 is securedtothe upper end ofthe shaft 25 by which the shaft may be turned to reset the pattern it desired. while the loom is at rest, suitable provisions being made for disconnecting the driving mechanism from the shaft 25.

A primary multiplier chain 30 is mounted upon sprockets 3l (Fig. 5) and a guide pulley 3la (Fig. 4). rllhe guide pulley 31a is adjustably secured in a bracket 'Slb in which it may be raised and lowered to accommodate pattern chains of different lengths.

The sprockets 3l are fast on a sleeve 32 (Fig. 6) freely rotatable upon a shaft 3 3 fixed in the framelO. The driving connections for the sprockets 31 are lsimilar to those already described and include a disc 34 fast on the sleeve 92 and having recesses to receive an arm or projection 35 (Fig. 5) on a clutch collar 36 slid-able on a second sleeve 37 having a notched disc 38 at one end and a worm gear 39 which meshes with the intermittent worm 24 previously described and which is thus periodically advanced. r1`he collar 36 is grooved to receive a lug 4()a (Fig. 1) projecting laterally from the lower end of a depending arm 40 pivoted on a horizontal shaft 41.

A second or auxiliary multiplying chain (Figs. 5 and 6) is mounted upon sprockets 46 on a sleeve 47 having a recessed disc 48 formed at one end thereof. The sleeve 47 is freely rotatable upon the fixed shaft 33 previously described. [in adjustably mounted guide pulley 49 (Fig. 4) supports the outer end of the auxiliary chain 45.

The sprockets 46 are intermittently advanced by a member a0 (Fig. 5) formed on a clutch collar 51 slidable on the sleeve 32 of the sprockets 31. A notched disc or plate 52 on the end of the sleeve 32 drives the arm and in effect connects the sprockets 46 to the sprockets 31 for simultaneous advance movements when the clutch inember 50 is in operative position. The collar 51 is grooved to receive a clutch-shifting arm 53 pivoted at 54 on a fixed bracket 55.

l will now describe the mechanism and connections for controlling` the movements of the clutch collars 18, 36 and 51 by which the movements of the main pattern chain, the primary multiplying chain and the auxiliary multiplying chain are respectively controlled.

in arm 60 (Fig. 5) is closely pivoted on the shaft 41 previously described and is secured by a binding screw 61 to a yoke 62 (Fig. 4) which spans the arm or lever 40 previously described. The yolre 62 has a laterally projecting arm 63 (Figs. land 2), the outer end of which is positioned above a projection 64 (Fig. 2) on the controlling arm 20 for the clutch collar 18. A coil spring 65 interposed between the arm 68 and the projection 64 provides a resilient actuating connection between the arm 60 and the clutch collar 18.

Then a riser 66 (Figs. 4 and 5) on the primary multiplier chain 30 raises the arm 60 the arm 63 (Fig. 2) will be depressed and, unless otherwise prevented, will cause driving engagement of the clutch collar 16 with the disc 16 to advance the main pattern chain 12.

The arm 40 (Figs. 1 and 5) which controls the clutch collar 36 for the primary multiplier chain is provided with a laterally projecting member 70 pivoted on the fixed shaft 41 and clamped to the arm 40 in desired angular relation by a clamping screw 71 (Fig. 1). At its outer end the arin 70 is provided with an offset end portion 72 to which is pivoted a lever 73 (Fior. 7) extending over one series of links or risers 75 of the main pattern chain 12. A spring 77 (Fig. 7) forms a resilient connection between the arm 70 and the lever 7 a riser 75 of the main pattern chain raises the arm 70 it acts yieldingly through the spring 77 to swing the arm 4() (Fig. 5) to the left, thus connecting the clutch collar 36 to advance the primary multiplier chain 80.

rl`he arm 53 (Fig. 5) for the clutch collar 51 associated with the auxiliary multiplier chain 45 has a laterally projecting slotted portion 80 engaged by a pin or stud tl (Figs, 5 and 6) secured in a lug or projection 82 (Fig. 1) formed on a hub 82 pivoted on a shaft 84fixed in an upper portion of the frame 10. The hub 83 has an arm 85 (Fig. 1) projecting therefrom and extending over a second series of risers 86 (Fig. 2) on the pattern chain 12. When a riser 86 raises the arm 85, the arm 53 (Fig. is moved to the left t0 cause driving cons nection for the auxiliary multiplying chain 45.

A contact arm 90 (Figs. 1 and projects laterally from a yolre 91 pivoted on the fixed shaft S4 and is raised by a riser 66 on the auxiliary multiplier chain 45. 15in arm 92 (Fig. 1) projects laterally from the opposite end of the yolre 91 and is provided with an adjustable contact screw 93. A locking lever 94 (Fig. 1) is pivoted at 95 on the olfset outer end 96 of the lever 85 previously described. A. coil spring 97 (Figs. 9 and 4) forms a resilient connection between a depending portion 99 of the offset end 96 of the lever o5 and the locking lever 94.

At its outer end, the lever 94 is provided with a depending portion 100 (Fig. 2) having` a lua 161 projecting rearwardly therefrom. iVhen the lever 85 is raised, the lug 101 is normally positioned in the path of a projection 102 (Figs. 1 and 2) on the clutch lever 2O previous described. f1 riser 86 on the main pattern chain 12 will thus act to render the lug- 191 operative to loclr the clutch coller 16 in inoperative position.

ll-laving described the details of construction of my improved multiplier, l will now destfibe the operation thereof. During the ordinary operation of the loom. the regular drop box controlling levers 119 (Figs. 1 and are actuated by the risers 111 on the main pattern chain 12. lVhen, however, a short repeat of the pattern is desired, a special riser 7 5 is placed on the pattern chain 12 Fig. 7 in position to cause the arm 4l) (Fw to move the clutch collar 36 to eng I the disc 34 and cause intermittent advance moven'ient of the primary multiplying chain 30. Upon the first advance movement of the multiplying chain 30, a riser 66 thereon is moved away from the arm 60 (Fig. 5) and a spring 112 pulls the arm 60 downward, thus swinging the arm 20 (Fig. 2) to 'the lett and disengaging the clutch collar 18. rlhe main pattern chain 12 thereY` alter remains at rest. until a riser (l0 on the primary multiplying chain 30 again lifts the arm and engages the clutch 18 to drive the main chain 12.

ln the drawings, the multiplying chain 30 is shown as having a riser 00 at every iiith link of the chain. Each time the multiplier is started, it will thus cause the insertion of ten picks ol' a single color of weft or filling hel'ore the main pattern chain is again started.

Then a longer repeat is desired, a riser 80 ie' 2) is placed on the main pattern chain 12 to engage the lever 85 which controls the auxiliary multiplier chain 15. is the lever 85 is lilfted, it rocksvthe arm 58 5) to the lett, engaging the clutch collar 51 to drive the auxiliary pattern chain 45.

As soon as this auxiliary cham l5 1s started, its riser 115 (Fig. 4) is moved awa) lrom the arm 90 (F 5), thus leaving the arm 92 and contact screw 93. (Figs. 1 and 3) iree to move upward. This permits ot swinging upward movement of the arm 0st (Fig. 2) on its stud 05 under the influence olf the coil spring EN The oiiiset end 101 of the arm 0l is thus moved into the path. ot the lug 102 on the shitting arm for the clutch 18, as indicated in Fig. 2.

l/Vhile the parts are thus positioned, the riser 66 on the primary multiplying chain may rock the arm 60, depressing the connected arm 63 (Fig. 2) hut such action will merely compress the spring and cannot shit't the clutch collar 18 until the riser 115 on the auxiliary pattern chain lifts the arm 00, thus depressing the contactscrew 93 and pushingl the lever 9a downward against the pressure of the spring 07 to clear the projection 102.

ln actual operation ot the device, the primary and auxiliary multiplier chains are so relnzd that a riser 00 on the primary chain 30 'will engage the arm 60 whenever the riser 115 on the auxiliary chain engages the arm 90. rlhus, as soon as the arm 911- is depressed so that its end portion 101 clears the lug` 102, the spring 65, already compressed acts to move the arm 20 and engage the clutch 18. is soon as the main pattern chain 12 is thus ser in motion, the riser 86 moves from under the lever 85, thus dropping the lever 94- pivoted thereon substantially loelow the projection 102.

More concisely stated, a riser is inserted on the main pattern chain 12 whenever it is desired to start the primary multiplier chain 30 and a riser 86 is inserted in the chain 12 when a greater number of repeats is desired. Whenever the auxiliary chain l5 is in operation, the primary chain 30 is not effective to start the iain chain 12 until the riser 115 on the auxiliary chain so comes into operative position.

i "iary chain Ll5 Vy have any desired numher ot lirlis and is used for long repeats containing .or instance, 'forty picks. fifty picks are desired. both the primary chain 30 and the lauxiliary chain l5 are started' tor one series ol" `l'orty picls and the primary chain 30 is then again started i'or an additional series of ten picks. sirahle that the number oit linlrs per riser in the primary chain 30 should he an exact divisor oi" the number chain 4:5.

llaving thus described my invention and the advantages thereof, l do not wish to he limited to the details herein disclosed otherwise t-l-ian as set forth in the claims, hut what l c aim is:-

l. 1n a multiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, means controlled hy the main pattern chain effective to start said primary and said auxiliary chains, means actuated loy said prin'iary chain for starting said main chain, and means controlled by said auxiliary chain effective to render said last named means inoperative.

2. ln a n'mltiplier, a main pattern chain, a. primary multiplier chain, an auxiliary multiplier chain, means controlled hy said mainA chain elle/tive to start said primary chain, additional means controlled hy said main chain eilective to start said auxiliary chain, and devices jointly controlled hy said primary and auxiliary chains effective to hold said main chain :in-operative ttor a selected number of picks.

3. In a multiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, regularly actuating driving mechanism, means controlled hl Said main chain effective to connect said primary chain to said driving mechanism, additional means controlled by said main chain effective to connect said auxiliary chain to said primary chain, and means jointly controlled hy said primary and auxiliary chains eilective to connect said main chain to said driving I"- mechanism.

el. ln a multiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, regularly actuating driving mechanism. and means for selectively connecting each of said respective chains to said driving' mechanism and for disconnecting the same, said primary chain being operative with or separate from said auxiliary chain, laut said auailiary chain operating only in unison with said primary chain.

5. ln a. multiplier driving mechanism, a main pattern chain. a primary multiplier chain, an auxiliary multiplier chain, connec- It is deol links in the aux! patterneontrolled tions through which said main chain is eileetive to connect said primary chain or said auxiliary chain and said primary chain to the drivin@ mechanism, and means including; a yielding connection through which said primary chain is operable to connect said main chain te said driving mechanism.

6. l'n a multiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, driving mechanism for said primary chain controlled by said main chain, driving` mechanism for said auxiliary chain controlled by said main chain, and driving` mechanism for said main chain yieldingly controlled by said primary chain and operable only When released by said auxiliary chain.

ln a iinultiplier, a main pattern chain., a primary multiplier chain, an auxiliary multiplier chain, driving mechanism for said primary chain controlled by said main chain, driving; mechanism for said auxiliary chain controlled by said main chain, drivingv meehanisin for said main chain yieldingjly controlled by said prin ary cliaiin and a locking' device for said main chain driving mechanism effective in operative position to hold said main chain driving mechanism inoperative, said locking device being; movable Ltroni locking position by said auxiliary chain.

8. In a multiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, clutch mechanism for said arimary chain controlled by said main chain, clutch mechanism for said auxiliary chain controlled by said main chain and operable with said primary chain, and clutch mechanism for said main chain jointly controlled by said primary and said auxiliary chains.

9. In a multiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, a main clutch mechanism, a loclrinv de Tice i'ior said main clutch mechanism, connections from said primary chain ellectiife to render said main clutch mechanisin operative but said. connections beingrendered inoperative by said locking device, and means operable by said auxiliary chain l'for releasingsaid main clutch mechanism from said locking` device.

l0. ln amultiplier, a main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, a main clutch mechanism controlled by said primary chain, a locking arm yieldingly positioned to prevent operable ree-engagement of said main clutch mechanism after said main clutch mecha` nisin is disengaged, and means operable by said auxiliary chain for moving said locking arm to inoperative position.

1l. ln a multiplier, driving mechanism. a 'main pattern chain, a primary multiplier chain, an auxiliary multiplier chain, regularly actuated driving mechanism, and connections through which said main chain is efvtective to connect said primary chain or said auxiliary chain and said primary chain to said driving' mechanism, the number of links 'for each riser of said auxiliary chain being an exact multiple of the number of links for each riser of said primary chain.

In testimony whereof I have hereunto alffixed my signature.

ALFRED F. MORRELL. 

